Dibond Composite Custom Sign PrintingDibond is a resin core wrapped either side with an Aluminium facing. Perfect for both external and internal use. This board is ideal for larger signs or when a strong sign material is required more rigid than plastic PVC. As one of the industry's top selling sign materials Dibond Aluminium Composite is a durable solution for your signage and advertising requirements that's suitable for school signs, safety signage, building and construction signs.